This is a discussion on 2011 WRX - Downpipe Choices/Selection help within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Originally Posted by Mikie13
Could occur...boost creep isn't as big of an issue in newer models as any turbo post ...

Could occur...boost creep isn't as big of an issue in newer models as any turbo post VF39 is made with larger wastegate openings to combat creep. Proper tuning also helps to eliminate the possibility of boost creep.

On that note, I have a freakin catless DP sitting in my basement waiting to go on...I just have to get the tune portion sorted out for when I'm ready to go.

ahh ok, yeah my buddy AT my local Subaru Dealership told me going Cobb Stage 2 OTS map with the Catless Downpipe would be OK, even though the Cobb Map notes say that its intended for a High Flow Cat DP. At the same time, some staff guys at Rallysportdirect agree with my buddy at Subaru, but then others say No you have to use a catted DP. What do I believe?! haha

While many others tend to believe that you need to stick to Cobb's map notes strictly, it makes sense. They produced that basic OTS map with those specifics in mind, so you shouldn't deviate from it.

I also think that they say that just to cover their ass legally. They say to use a Cat because that's what's legal in 95% of the country. And in the event something does go wrong with your car that who knows, has something to do with being catless, you can't go back and say "well Cobb allowed it!" If you put on an intake, while going stage 2 with a map they didn't note to use an intake with, then you can't go back and try and sue them to say that their map caused you to blow up your car. They have the ability to say "well, you had that X-brand intake on there and our map notes specifically said to NOT use any kind of aftermarket intake."

Plus...that OTS map doesn't take into account other mods, so you may not see noticeable gains from a mod that you just spent money on.

That being said...I had an SPT intake, catless DP, and larger TMIC on my 07 STI without any issues running the OTS Cobb Stage 2 map. But, like Cobb, I'll make a disclaimer: if you don't follow the map notes and you blow up your car, I too am NOT responsible haha.

EJ I'm still not sure what you mean man. What exactly is 'SOP', what is 'EWG' for example and what exactly would I need to help eliminate or prevent the boost creep?

And Mikie I totally agree with you, I do think however that I would be fine with the catless and the stage 2 ots map for a few months, it's not like I'm using a completely wrong tune, just one that isn't exactly optimized for my situation. In May when I get my Nameless midpipe I will be getting a protune anyways.

vBulletin Message

Errors

The following errors occurred with your submission

Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Password:

Confirm Password:

Please enter a password for your user account. Note that passwords are case-sensitive.

Email Address:

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Insurance:

Please select your insurance company (Optional)

Log-in

User Name:

Password:

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.